Important Circuit Information - Siemens SIMODRIVE 611 Planning Manual

Important Circuit Information

9.1 General information
Note
The following circuit examples, information and descriptions are of a general
nature and do not claim to be complete and correct for a particular application.
They must be adapted for every plant or system.
The circuit examples are intended to support the machine manufacturer/user
when integrating the control–related part of a SIMODRIVE 611 drive system
into the complete control concept of his machine/plant.
The user is responsible in configuring and engineering the complete control
system, taking into account all of the guidelines/standards valid for his particu-
lar application, and the safety measures, derived from a hazard analysis/risk
evaluation, to avoid injury to personnel and damage to machinery.
Warning
!
After opening the line supply disconnection device (main switch) or the line
contactor, a residual energy and hazardous touch voltages up to 60 V DC are
available at the power DC link of the drive group and therefore at electrically
connected components (terminals, cables, switching devices, motors etc.).
This residual energy and hazardous touch voltages are present while the DC
link capacitors discharge, max. 30 min., and must be taken into consideration
in a hazard analysis/risk evaluation.
The service personnel must be absolutely certain that the plant or system is
actually in a no–voltage condition before carrying out any service, maintenance
or cleaning work on the machine!
Warning
!
Before the line disconnection device (main switch) or a line contactor is used to
power up or power down the drive group, terminal 48, start and/or terminal 63,
pulse enable, must be de–energized at the NE module. This can be realized,
for example, using a leading auxiliary contact at the main switch.
The terminals do not have to be first de–energized for uncontrolled UI modules,
5, 10 and 28 kW as well as for I/R modules, if these are operated uncontrolled
in the line supply infeed and regenerative operating modes and an overvoltage
limiting module is used.
 Siemens AG 2001 All rights reserved
SIMODRIVE 611 Planning Guide (PJU) – 05.01 Edition
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